BirdAnalyst
BBS Route · Maine · BCR 14

Aurora Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 123 species recorded across 38 survey years, still active.

123Species RecordedSpecies recordedDistinct species detected on standard-protocol BBS runs here across all years on record — a measure of survey breadth, not a complete checklist.Full methodology →
38Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1975–2021Span
6Observers

Bird Species Found on Maine Aurora

Top 40 of 123 species by most recent count. Each links to its species trend.

Species recorded on the Aurora route.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →Baseline yearThe first year of the smoothed window the trend is measured from. An earlier baseline means a longer record stands behind the number.Full methodology →History
Red-eyed VireoVireonidae392021+30%1979
OvenbirdParulidae352021+52%1979
Northern ParulaParulidae332021+165%1979
American RobinTurdidae302021-43%1979
American CrowCorvidae242021+205%1979
Blue JayCorvidae232021+122%1979
Common YellowthroatParulidae212021-28%1979
Cedar WaxwingBombycillidae192021+154%1979
Common RavenCorvidae162021+100%1979
Black-capped ChickadeeParidae152021+11%1979
Pine WarblerParulidae132021+900%1988
Mourning DoveColumbidae122021+200%1988
Hermit ThrushTurdidae122021+59%1979
Black-and-white WarblerParulidae112021+42%1979
Cliff SwallowHirundinidae102019-21%1982
Barn SwallowHirundinidae102021-51%1979
American GoldfinchFringillidae92021+43%1982
Song SparrowPasserellidae92021-21%1979
Red-breasted NuthatchSittidae92021+500%1979
Chimney SwiftApodidae92013+86%1982
White-throated SparrowPasserellidae82021-68%1979
Blue-headed VireoVireonidae72021+71%1979
Chipping SparrowPasserellidae62021+58%1979
Magnolia WarblerParulidae62019-50%1979
Pine SiskinFringillidae61992+500%1988
European StarlingSturnidae52021-90%1979
Common GrackleIcteridae52018+0%1979
House SparrowPasseridae51983n/an/a
Yellow-bellied SapsuckerPicidae42021+500%1979
Red-winged BlackbirdIcteridae42021-68%1979
Nashville WarblerParulidae42021-78%1979
Black-throated Blue WarblerParulidae42021+8%1979
Chestnut-sided WarblerParulidae42021-60%1979
Winter WrenTroglodytidae42021+19%1979
Eastern PhoebeTyrannidae42021+113%1982
Philadelphia VireoVireonidae42010+300%2009
Wood ThrushTurdidae32006-91%1979
Broad-winged HawkAccipitridae32021+100%1995
Golden-crowned KingletRegulidae32019-42%1983
Downy WoodpeckerPicidae32018+225%1989

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.